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Vasanth

Singular Perturbation-based Reinforcement Learning of Two-Point Boundary Optimal Control Systems

ACC'22 (American Control Conference)
Summary: Optimal control of two-point boundary systems.
[Paper] [Code]
We solve the problem of two-point boundary opti- mal control of linear time-varying systems with unknown model dynamics using reinforcement learning. Leveraging singular perturbation theory techniques, we transform the time-varying optimal control problem into two time-invariant subproblems. This allows the utilization of an off-policy iteration method to learn the controller gains. We show that the performance of the learning-based controller approximates that of the model-based optimal controller and the approximation accuracy improves as the control problem’s time horizon increases. We also provide a simulation example to verify the results